Power factor corrector with a high-order harmonics filtering function

摘要

The article presents an original method and a control system of the active power factor corrector (PFC), which allows integrating the function of a parallel active filter of high-order harmonics into it. This makes it possible to reduce the total harmonic distortion of the grid voltage at the point of connection of the PFC with the proposed control system, thereby improving the working conditions of other electrical equipment in this grid. The presented control method is applicable to all PFC topologies employing direct control of the input currents.